Panel fastener for doors



Patented Jul 27,192 f amen {s res ATENT iorrlic nnirn o. Lonrsonnn, or DUBUQ'UEQIOXVA. 3

PANEL rAsrnnnn roa noons.

Application filed'iuly 27,1925. Serial m. 46,422.

Thisinvention relates to improvements in.

fastening devices and moreparticularly to a novel fastening device for securing screen panels orsash panels toa storm-door. I

' The primary object ofthe invention is to provide an inexpensivefastening means which maybereadily-operated by a screw,

7 consists in the novel features'hereinafter described in detail, illustrated in the accompanying drawing and more particularly pointed out inthe appended claims.

Referring to :thedrawing:

Fig. 1' an inner side View of a door with a screen panel jheld-in position by the improved'fastening means. I

Fig. 2 is a sectional. view of thesame taken on line 22 of Fig. '1." i Fig. is a fragmentary sectional view taken on line 3+3 of Fig. 2. i

Fig. i-is a fragmentary new of one edge 1 of the screen panel with an inclined recess theimk the locking. plate 17 will have to cantolver as it entersthe recess 8, and for this purpose therein to receive the locking bar of proved fasteningmeans. V a Fig. 5 is a fragmentary sectional view taken on line 5-5- of Fig. 2. N

a Fig. 6 is a perspective'view of the main elements of the locking means in disassembled relation.

In, the drawing, 1 designates the door having cross-bars 2 and side bars 3 forming a rectangular frame." The inner-edges of this frame are rabbeted as shown in 4 to receive a flange or-bead 5 which extends around the edge of a panel frame 6. In the present instance the panel frame carries wire netting 7 but it is obvious that the frame might carry a wood panel or thehke.

For the purposes of the present invention" cesses 9 are'provided and these recesses may Fig. 6.

of fastening the panel stern have their side-surfacesparallel to thesside surfaces of the door. 1

At each point; where a recess 9 is located,

a socket 10 is placed onthe' door and this socketis preferably secured in place by frict onal -contact.-' Each socket is associated with a rotatable .stem, 11,.best shown in rotatably mounted inuthe socket and'has a The stem has a head-12 which is groove 13 to receive the end of ascrewhoused within the recess 9 *whenwthe "plate is in vertical orsubstantiallyvertical position,

and in such position it will not projectbeyond the inner edge of the frame formed The portion ofthe stem-1: adjacent,

by'the door and interfere with the introductionv of the frame 6 into. the frame formed by 'thebars 2 and 3. When the frame 6ha's beenplaced in the door, the: stems 111 are. turned by means ofa screw-driver or the like Y and'this will cause the locking plates 17 to' enterithe inclinedrecessesilS and wedge the i flange 5 into the rabbet .4.

In order to permit this wedginggaction,

the slot 16is ofslightly larger area than the In other words,'the plate, 17 has arock slightlyin the axial direction of the slightly wider than the thickness of the loci:-

ter when the stem is rotated.

Each pair of recesses 8] and 9 preferably form a circular cavity as shown in Fig. 8.

From the foregoing it is believedthat the construction, operation and. advantages of the invention may be readily understood and it is obvious that after apanel has been secured in position the improved fastening means, "that it cannot be removed from one side of the door and may only be removed from the other side offithe door, by using a screwdriver or thelik'e. Furthermore, after the fastening devices have locked the panel and the recess 9is preferably made cross sectional area of theportion 15 of the a stem. loose fit on the stem so that the plate may in position, the panel will remain tightand will not rattle due to wind and the like.

It is apparent that changes may be made in the details disclosed without departing from the spirit of the invention asexpresse'd in the claims. 7 i

What is claimed and desired to be secured by Letters-Patent is:

1. A fastening device for securing two slotted members together comprising a ro-' tatable stem adapted to be mounted in one of said me-mber's,- a* flat locking plate loosely mounted on said stem and capable of rocking slightly in the axial direction of the stem,

said lGCliiflg' plate being adapted to engage tatable stem of non-circular cross section, a

- locking plate loosely mounted on said stem,

rotatable with the latter and capable of a"- I slight rocking movement in a plane parallel to the of thest-em, said plate being adapted to' cross the slots of said members when the stem is rotated in the proper di'- rection, and meansfor'mounting the stem' in no of sa d members.

8. A fastening devlce for'lockmg two slotted members together comprising a' rotatable stem adapted to be mounted in one of said members, a flat locking plate having a slot tnrough' which the stem extends, said plate being adapted to normally occupy one of said slots and tomoveintothe other one of said slots when the stem is rotated, and means for causing the plate to rotatewith the stem and" permitting the plate to move slightly in the axial directionof thesa'me.

4'. In combination, a' door having a frame and a panel mounted in the frame, one of said parts having an inclined slot and the other art having an opposed slot arranged at an angle thereto, a stem rotatably mounted in the member having the last mentioned slot and intersecting said slot, a flat locking plate loosely mounted on said stem for rocking' movement in the axial direction of the stem, said plate being movable in the slots when the stem is rotated, and cooperating means on the stem and plate for causing the plate to rotate with the stem.

5; In combination, a door having a iram e member and a panel member mounted in the rotatably mounted in said socketand having a portion of non-circular cross section, and aloclring plate mounted on the non-clroular portion of the stem and capable of rocking in a plane parallel to the axis of the stem but prevented from rotating relatively to the stem, said-locking plate being a-daptedto occupy one of said slots and to be moved into the inclined slot when the stem is rotated for forcing the flange of the flanged member againstthe other member.

6. A locking device including a socket adapted to be countersunkin a member that is to be locked to another member, ahead rotatably mounted in the socket, astem integral with the head and projecting from the socket, said head being provided with means to enable the same to be readily rotated, said stem beingv provided with a longitudinally extending key, and a locking plate mounted on the stem for movement axially of the latter and preventedfrom rotation relatively to the stem by the key.

In testimony whereot I afiix my signature.

EMIL o. Lonrsonnn 

